A049687 as a triangular array
| | | | | | | | | | | | | 0 |
| | | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | | | | 1 | | 4 | | 4 | | 1 |
| | | | | | | | | | 1 | | 5 | | 5 | | 5 | | 1 |
| | | | | | | | | 1 | | 6 | | 7 | | 7 | | 6 | | 1 |
| | | | | | | | 1 | | 7 | | 8 | | 9 | | 8 | | 7 | | 1 |
| | | | | | | 1 | | 8 | | 10 | | 11 | | 11 | | 10 | | 8 | | 1 |
| | | | | | 1 | | 9 | | 11 | | 14 | | 13 | | 14 | | 11 | | 9 | | 1 |
| | | | | 1 | | 10 | | 13 | | 15 | | 17 | | 17 | | 15 | | 13 | | 10 | | 1 |
| | | | 1 | | 11 | | 14 | | 18 | | 18 | | 21 | | 18 | | 18 | | 14 | | 11 | | 1 |
| | | 1 | | 12 | | 16 | | 20 | | 22 | | 23 | | 23 | | 22 | | 20 | | 16 | | 12 | | 1 |
| | 1 | | 13 | | 17 | | 22 | | 24 |
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A049687 as a square array
0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13
| 1 | 4 | 5 | 7 | 8 | 10 | 11 | 13 | 14 | 16 | 17
| 1 | 5 | 7 | 9 | 11 | 14 | 15 | 18 | 20 | 22
| 1 | 6 | 8 | 11 | 13 | 17 | 18 | 22 | 24
| 1 | 7 | 10 | 14 | 17 | 21 | 23
| 1 | 8 | 11 | 15 | 18 | 23
| 1 | 9 | 13 | 18 | 22
| 1 | 10 | 14 | 20
| 1 | 11 | 16
| 1 | 12
| 1
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A049687 as an upper right triangle
0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13
| | | 1 | 4 | 5 | 7 | 8 | 10 | 11 | 13 | 14 | 16 | 17
| | | | 1 | 5 | 7 | 9 | 11 | 14 | 15 | 18 | 20 | 22
| | | | | 1 | 6 | 8 | 11 | 13 | 17 | 18 | 22 | 24
| | | | | | 1 | 7 | 10 | 14 | 17 | 21 | 23
| | | | | | | 1 | 8 | 11 | 15 | 18 | 23
| | | | | | | | 1 | 9 | 13 | 18 | 22
| | | | | | | | | 1 | 10 | 14 | 20
| | | | | | | | | | 1 | 11 | 16
| | | | | | | | | | | 1 | 12
| | | | | | | | | | | | 1
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